JP2010236475A5 - - Google Patents
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- JP2010236475A5 JP2010236475A5 JP2009087090A JP2009087090A JP2010236475A5 JP 2010236475 A5 JP2010236475 A5 JP 2010236475A5 JP 2009087090 A JP2009087090 A JP 2009087090A JP 2009087090 A JP2009087090 A JP 2009087090A JP 2010236475 A5 JP2010236475 A5 JP 2010236475A5
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- Prior art keywords
- egr
- exhaust gas
- passage
- recirculated
- blower
- Prior art date
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Description
このＥＧＲ通路２５上にはＥＧＲ弁２６、スクラバ２７、ブロア２８、及びＥＧＲガスクーラ２９が排気通路３側からこの順で介在している。ＥＧＲ弁２６は例えばバタフライバルブ等によって構成されてその開度が可変となっており、ＥＧＲ弁２６の開度を変更することによってＥＧＲ率が変更され得るようになっている。この「ＥＧＲ率」とは、燃焼室より排気通路３に送り込まれた全排ガス量に対し、ＥＧＲ通路２５を介して内燃機関２へと再循環された排ガス量の割合である。図５を参照して前述したように、ＥＧＲ率を増加させることにより、ＮＯｘ排出率を減少させることができる。その一方、本システム１は所謂高圧ＥＧＲの技術を適用しているため、ＥＧＲ率を増加させると過給機６Ａ，６Ｂ側に供給される排ガス量の減少を招くこととなる。 The EGR valve 26 in the EGR passage 25 on scrubber 27, blower 28, and an EGR gas cooler 29 is interposed in this order from the exhaust passage 3 side. The EGR valve 26 is constituted by, for example, a butterfly valve or the like, and its opening degree is variable. By changing the opening degree of the EGR valve 26, the EGR rate can be changed. The “EGR rate” is the ratio of the amount of exhaust gas recirculated to the internal combustion engine 2 via the EGR passage 25 with respect to the total amount of exhaust gas sent from the combustion chamber to the exhaust passage 3. As described above with reference to FIG. 5, the NOx emission rate can be reduced by increasing the EGR rate. On the other hand, since the system 1 applies so-called high pressure EGR technology, increasing the EGR rate causes a reduction in the amount of exhaust gas supplied to the superchargers 6A and 6B.
なお、スクラバ２７は排ガスの脱塵、脱硫及び冷却を行い、再循環される排ガスの清浄化に寄与するデバイスである。ブロア２８は排ガスを昇圧するためのデバイスである。舶用ディーゼルエンジンにおいては再循環される排ガスの圧力よりも掃気圧のほうが高くなりがちであるため、掃気通路への再循環に際して排ガスの圧力をこのブロアによって掃気圧程度に高めることにより、排ガスの再循環を円滑に行わせることができる。なお、ブロア２８の駆動源は、電動モータでもよいし内燃機関２のクランク軸でもよく、また上記第１及び第２過給機６Ａ，６Ｂとは別の過給機であってもよい。そして、排気通路３からＥＧＲ通路２５に流入した高温の排ガスはＥＧＲガスクーラ２９において冷却された上で掃気通路１０を介して内燃機関２まで再循環されるようになっている。 The scrubber 27 is a device that dedusts, desulfurizes, and cools the exhaust gas and contributes to cleaning the exhaust gas that is recirculated. The blower 28 is a device for boosting the exhaust gas. In marine diesel engines, the scavenging air pressure tends to be higher than the pressure of the exhaust gas being recirculated. Circulation can be performed smoothly. The drive source of the blower 28 may be an electric motor, a crankshaft of the internal combustion engine 2, or a supercharger different from the first and second superchargers 6A and 6B. The high-temperature exhaust gas flowing from the exhaust passage 3 to the EGR passage 25 is adapted to be recirculated to the internal combustion engine 2 via a transfer passages 10 on which has been cooled in the EGR gas cooler 29.
また、ＥＧＲ通路上のスクラバ、ブロア、ＥＧＲガスクーラは必要に応じて設けられるものであり、適宜省略可能である。 Also, scrubber on the EGR passage, a blower, EGR gas cooler are those provided as necessary and may be omitted as appropriate.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009087090A JP5530117B2 (en) | 2009-03-31 | 2009-03-31 | Exhaust gas recirculation system for a supercharged internal combustion engine. |
| CN201080011379.6A CN102348879B (en) | 2009-03-31 | 2010-03-24 | Exhaust recirculation system in internal combustion engine with supercharger |
| PCT/JP2010/002072 WO2010113431A1 (en) | 2009-03-31 | 2010-03-24 | Exhaust recirculation system in internal combustion engine with supercharger |
| KR1020117016005A KR101322078B1 (en) | 2009-03-31 | 2010-03-24 | Exhaust recirculation system in internal combustion engine with supercharger |
| EP10758216.5A EP2415990B1 (en) | 2009-03-31 | 2010-03-24 | Exhaust recirculation system in internal combustion engine with supercharger |
| DK10758216.5T DK2415990T3 (en) | 2009-03-31 | 2010-03-24 | EXHAUST RECYCLING SYSTEM IN A SUPER CHARGER ENGINE |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009087090A JP5530117B2 (en) | 2009-03-31 | 2009-03-31 | Exhaust gas recirculation system for a supercharged internal combustion engine. |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2010236475A JP2010236475A (en) | 2010-10-21 |
| JP2010236475A5 true JP2010236475A5 (en) | 2012-04-12 |
| JP5530117B2 JP5530117B2 (en) | 2014-06-25 |
Family
ID=42827747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009087090A Active JP5530117B2 (en) | 2009-03-31 | 2009-03-31 | Exhaust gas recirculation system for a supercharged internal combustion engine. |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP2415990B1 (en) |
| JP (1) | JP5530117B2 (en) |
| KR (1) | KR101322078B1 (en) |
| CN (1) | CN102348879B (en) |
| DK (1) | DK2415990T3 (en) |
| WO (1) | WO2010113431A1 (en) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5682245B2 (en) | 2010-11-10 | 2015-03-11 | 株式会社Ihi | Low pressure loop EGR device |
| JP5683325B2 (en) * | 2011-03-03 | 2015-03-11 | 三菱重工業株式会社 | Exhaust gas treatment device and internal combustion engine provided with the same |
| JP5684041B2 (en) * | 2011-05-12 | 2015-03-11 | ヤンマー株式会社 | Internal combustion engine with a supercharger |
| US20130174548A1 (en) * | 2011-05-16 | 2013-07-11 | Achates Power, Inc. | EGR for a Two-Stroke Cycle Engine without a Supercharger |
| JP5972597B2 (en) * | 2012-02-21 | 2016-08-17 | 三菱重工業株式会社 | EGR control device and engine equipped with EGR control device |
| DE102012009315B4 (en) * | 2012-05-10 | 2021-04-22 | MAN Energy Solutions, branch of MAN Energy Solutions SE, Germany | Internal combustion engine |
| KR101890947B1 (en) * | 2012-10-31 | 2018-08-23 | 현대중공업 주식회사 | Exhaust gas recirculation system for supercharging type internal combustion engine |
| WO2014103337A1 (en) * | 2012-12-28 | 2014-07-03 | 川崎重工業株式会社 | Egr unit and marine engine system |
| JP6122300B2 (en) * | 2013-01-18 | 2017-04-26 | 川崎重工業株式会社 | Engine system and ship |
| JP6071583B2 (en) * | 2013-01-24 | 2017-02-01 | 三菱重工業株式会社 | Control device, supercharging system, control method and program |
| FR3011589B1 (en) * | 2013-10-04 | 2018-02-23 | Societe De Motorisations Aeronautiques | AERONAUTICAL THERMAL MACHINE COMPRISING A PRESSURIZED FLUID RESERVE FOR STARTING A CLOSED CYCLE ENGINE |
| CN103758646B (en) * | 2014-02-24 | 2016-03-02 | 吉林大学 | The EGR control system of internal combustion engine transient operating mode |
| WO2015135685A1 (en) * | 2014-03-13 | 2015-09-17 | Winterthur Gas & Diesel Ltd. | A system for exhaust gas recirculation, engine, use of a system for exhaust gas recirculation, method for exhaust gas recirculation and diesel exhaust composition |
| DK178102B1 (en) * | 2014-05-22 | 2015-05-18 | Man Diesel & Turbo Deutschland | A large slow running turbocharged two-stroke internal combustion engine with exhaust gas recirculation system |
| JP5908636B1 (en) * | 2015-04-08 | 2016-04-26 | 川崎重工業株式会社 | Ship engine system and control method thereof |
| DK178780B1 (en) * | 2015-06-19 | 2017-01-23 | Man Diesel & Turbo Filial Af Man Diesel & Turbo Se Tyskland | Large two-stroke turbocharged compression ignited internal combustion engine with an exhaust gas purification system |
| CN106894867A (en) * | 2015-12-17 | 2017-06-27 | 沪东重机有限公司 | A kind of marine diesel NOXThe bypath valve and operating method of emission reduction device SCR |
| KR101865916B1 (en) * | 2016-09-29 | 2018-07-13 | 연세대학교 산학협력단 | An EGR control device for two-stage turbocharger equipped engine with dual loop EGR system |
| JP6313833B1 (en) * | 2016-10-24 | 2018-04-18 | 川崎重工業株式会社 | Marine engine system and control method for marine engine system |
| WO2020244757A1 (en) * | 2019-06-05 | 2020-12-10 | Volvo Truck Corporation | A method for starting operation of an internal combustion engine |
| US11319906B2 (en) | 2020-10-06 | 2022-05-03 | Ford Global Technologies, Llc | Methods and systems for an exhaust gas recirculation system |
| DK181014B1 (en) * | 2021-04-21 | 2022-09-23 | Man Energy Solutions Filial Af Man Energy Solutions Se Tyskland | A large turbocharged two-stroke internal combustion engine with egr system |
| CN113217198A (en) * | 2021-05-08 | 2021-08-06 | 南通航海机械集团有限公司 | Diesel engine exhaust back pressure sine wave automatic adjusting system and method |
| JP2024121951A (en) * | 2023-02-28 | 2024-09-09 | 川崎重工業株式会社 | Engine System |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62276221A (en) * | 1986-05-22 | 1987-12-01 | Nippon Soken Inc | Accelerator for turbo-charger |
| JP2884725B2 (en) * | 1990-06-21 | 1999-04-19 | いすゞ自動車株式会社 | Control device for twin turbocharger |
| JP3328317B2 (en) * | 1992-04-03 | 2002-09-24 | 富士重工業株式会社 | Switching control method for sequential turbo engine |
| JP3137801B2 (en) * | 1993-05-11 | 2001-02-26 | マツダ株式会社 | Engine supercharger |
| JP3937791B2 (en) * | 2001-10-15 | 2007-06-27 | 日産自動車株式会社 | Control device for multi-cylinder diesel engine |
| DE102004015108B4 (en) * | 2004-03-27 | 2008-04-24 | Mtu Friedrichshafen Gmbh | Internal combustion engine with an exhaust gas recirculation |
| EP1640596B2 (en) * | 2004-09-22 | 2016-09-07 | Ford Global Technologies, LLC, A subsidary of Ford Motor Company | Supercharged internal combustion engine and method for operating such an internal combustion engine |
| US7000393B1 (en) * | 2005-04-14 | 2006-02-21 | International Engine Intellectual Property Company, Llc | System and method for relieving engine back-pressure by selectively bypassing a stage of a two-stage turbocharger during non-use of EGR |
| US7571608B2 (en) * | 2005-11-28 | 2009-08-11 | General Electric Company | Turbocharged engine system and method of operation |
| JP2008175114A (en) * | 2007-01-17 | 2008-07-31 | Toyota Motor Corp | Supercharger control device of internal combustion engine |
| JP4743171B2 (en) * | 2007-06-20 | 2011-08-10 | トヨタ自動車株式会社 | Supercharger control device for internal combustion engine |
-
2009
- 2009-03-31 JP JP2009087090A patent/JP5530117B2/en active Active
-
2010
- 2010-03-24 KR KR1020117016005A patent/KR101322078B1/en active IP Right Grant
- 2010-03-24 DK DK10758216.5T patent/DK2415990T3/en active
- 2010-03-24 CN CN201080011379.6A patent/CN102348879B/en active Active
- 2010-03-24 EP EP10758216.5A patent/EP2415990B1/en active Active
- 2010-03-24 WO PCT/JP2010/002072 patent/WO2010113431A1/en active Application Filing
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